Wrench.



QB. BUIIDY.

- WRENCH. APPLICATION FILED SEPT. 9, |916.

Patented Feb. 5, 1918.

INVENTOR fie/@fam L' 71/ nd WITNESSES in srarns narnia ien..

BENJAMIN BUNDY, OF PASAIDENA, CALIFORNIA.

WRENCH.

To all whom it may concern.'

Be it known that I, BENJAMIN BUNDY, a citizen of the United States, residing at Pasadena, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Wrenches, of which the following is a specilication.

- This invention has relation to wrenches, and has for an object to provide a wrench of the type which comprises a shank, a sta tionary jaw on the shank, and a movable jaw on the shank, the specific improvement being means for rapidly adjusting the movable jaw realtively to the stationary j aw, and for securing the jaw against displacement subsequent to such adjustment. The nature and objects of my invention will be readily apparent to those skilled in the art to which it appertains in the light ofthe followingexplanation of the accompanying drawings illustrating what I now Ibelieve to be the preferred embodiment, or mechanical expression, of my invention from among other forms and arrangements within the spirit thereof, or the scope of the appended claims.

Another object of the invention is to provide a wrench having the above named characteristics and embody means whereby the wrench may be employed as a vise and which is adapted to be removably secured to a support for the purpose set forth.-

In Vaddition to the foregoing, my invention comprehends improvements in the details of construction and arrangement of parts to be hereinafter more fully described and particularly set forth in the appended claims.

In the accompanying` drawings in' which similar and corresponding parts are designated by the same characters of referenceV throughout the several'views in which they appear:

Figure 1 is a view in side elevation of a wrench constructed in accordance with my invention.

Fig. 2, is a longitudinal section taken through the movable jaw and correlated parts.

Fig. 3,'is a transverse section on the line 3-3 of Fig. 1.

Fig. 4;, is a view similar tov Fig. 3 with the parts in a different position.

Fig. 5, is a transverse section on the line w of Fig. 1.

Fig. 6, is a view in side elevation of a Specification of Letters Patent.

Patented Feb. 5, 191%.

Application led September 9, 1916. Serial No. 119,262.

clamp for supporting the wrench when used as a vise, and

Fig. 7, is a view of the clamp in plan.

With reference to the drawings, 1 indicates the shank of my improved wrench provided with a longitudinal threaded portion 2, which may be formed integrally with the shank, or as in the present instance is a bar seated within a recess extending longitudi nally in the shank. The shank is circular in cross section, and the provision of the threaded portion 2, forms in effect a rod having an interrupted threaded portion.

The shank is provided at one end with a handle 3 and at the other end with a stationary jaw t. A relatively movable jaw 5 is mounted upon the shank, and is formed in halves riveted together as illustrated, each half having a semi-circular opening forming, when the halves are connected, an opening 6 through which the shank extends. That face of the jaw 5 remote from the clamping face thereof is formed with a circular recess 7'which is undercut to Provide an annular groove 8. That portion of the opening 6 facing the back of the jaw is enlarged as at 9 to form a longitudinal slot which also extends through the jaw and is designed to receive the threaded portion 2 of the shank.

A nut 10 provided with a circular exterior and an internally threaded portion 11 is embraced around the shank 1`l and is formed with a longitudinal recess 12 in said threadn ed portion of a size to receive the threaded portion of the shank. An annular member 13 slightly larger in diameter than the member 10 and surrounding the shank 1, abuts against the member 10, and is formed with an eccentric opening 14 which is internally threaded at 15. The member 13 is pivotally connected to the member 1() by means of a pivot 16vwhich is located in a plane at right angles to the plane passing through the center of the said member 13 and its eccentric opening. rlFhis arrangement is clearly brought out inFig. 5 from which it will be noted that the member 13 is movable relatively to the pmember 10, its opening 111 being slightly larger than the opening in the member 10. It willrbe further noted that owing to such movement, the threaded portion 15 of said member may be moved into `or out of engagement with the threaded portion 2 of the shank.

An arcuate spring member 17 is secured at one end by means of a threaded fastening 18 to the exterior of the jaw 5, with the free -end of said spring member slightly spaced from the surface of the nut 10 and the spring member disposed in the plane thereof. 'A stop member 19 is located on the member 10, and disposed radially thereto as illustrated and in close relation to the undersurface of the jaw 5. I "l In operation, the movable aw may be quickly moved to any position upon the n shank relative to the stationary jaw byrotating the` nut 10 in' the direction of the arrow of Fig. 3, until the spring 17 is iiexed .outward by its engagement with the stop 19,

and until the stop is brought beyond the free end of the spring and into the position shown in said ligure. In this position of the parts, the recess 12 of the nut 10 is opposite the threaded portion 2 of the shank. It will be obvious then, to permit movement vof the jaw 5 and correlated parts, it is but necessary to move they member 13 out of alinement with the member 10 as shown in dotted lines in Fig. 5,' whereupon the threaded portion 15 of said member is disengaged from the threaded portion of the shank, thereby completely disengaging the jaw from the shank and permitting movement thereof.

only approximate, and a line adjustment is` necessary, the structure including the members 10 and 13 is rotated m the directionof the arrow, whereupon the movable jaw is Ymoved toward the stationary jaw. It is evi dent that the member 10 can berotated in one direction only owing to the arrangement of the spring member 17 and the stop 19, and such movement. tends to urge the jaw 5 toward the jawel. then the springmember 17 is brought into engagement with the stop 19, the user is thereby informed that the parts are in position to permit relative movement of the movable jaw.

To employ' the wrench asa small bench' vise I rovide a Jol Oonal extension la and 7 D 3 clamp, illustrated in Fig. 6 is Aused havingv an upper and'v lower jaw 20 and 21"respectively, with a clamping screw 22 in the lower jaw whereby the clamp may be-secured to a bench or other support. The upper .jaw 2O is formed with a polygonal opening 23 adapted to receive the correspondingly formed ex` tension la of the jaw l of the wrench. The

wrench is thus rigidly held and its jaw may be employed to hold a piece of work. The wrench may by reason of the formation ol the extension 4, be adjusted in various positions.

Thus it will be seen that I have provided a novel form of wrench in which the adjusting nut permitsI both rough and fine adjustment, thereby enabling the wrench to bc more quickly set to the required position than wrenches of the type heretofore provided. It will be further obvious that thc principles embodied in the wrench may be employed in a vise, which comprises in its elements, the equivalent of this wrench, namely a movable and stationary jaw, and a threaded means. The principle may also be embodied in a bolt, and a nut therefor wherefor whereby the nut may be quickly adjusted relative to the bolt, and subsequently finely adjusted.

llhile I have illustrated and described my invention with some degree of particularity, I realize that in practice various alterations thereover may be made, and I therefore reserve the right and privilege of changing the form of the details of construction, or otherwise altering the arrangement of the correlated parts without, departing from the spirit of the invention or the scope of the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:-

1. A wrench including a shank provided with a threaded portion and a stationary jaw, a movable jaw mounted on the shank, a nut associated with the movable jaw and engageableV upon the threaded portion of the shank, the nut having its threaded portion interrupted to permit disengagement thereof from the shank, and a second nut associated with the first and adapted to be moved into or out of engagement with the threaded portion of the shank when the first nut is in its aforesaid disengaged position.

2. A wrench including a shank provided with a threaded portion and a stationary jaw, a 'movable jaw mounted on the shank, a nut associated with the movable jaw, engageable upon the threaded portion of the shank and having an interrupted portion to permit its disengagement from the shank, and a second nut pivoted to the iirst, and movable into and out of engagement with the threaded portion of the shank when the'rst nut is in its aforesaid disengaged position.

3. A wrench including a shank provided with av threaded portion and a stationary jaw,l a movable jaw mounted on the shank, a nut associated with the movable jaw, engageable vupon the threaded portion of the i) Il shank and having an interrupted portion to permit its disengagement from the shank, a second nut pivote-d to the first and having an internally threaded eccentric aperture, the second nut being movable relatively to the lirst when said first nut is in its aforesaid disengaged position7 vto engage or discngage the threaded portion of the shank.

Ll. A Wrench including a shank provided with a threaded portion and a stationary jaw, a movable jaw mounted in the shank, a circular nut associated with the movable jaw7 encircling the sha-nk and engaging the threaded portion thereof, the nut having an interrupted portion permitting disengagement from the shank, a second nut, circular and conforming to the first and pivotally connected thereto, the second nut having an eccentric threaded opening, the second nut being movable out of alinement With the first when the first is in its aforesaid disengaged position to enga-ge or disengage the threaded portion of the shank, and a yieldable stop on the first nut, engageable upon a stop on the jaw to indicate when said nut is in disengaged position.

In testimony whereof I affix my signature in presence of two Witnesses.

BENJAMIN BUNDY. IVitnesses A. L. HAMILTON, IV. B. LOUGHERY.

Gomes or this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, JD. 0. 

